All I can say is my brother recently was the victim of theft and the insurance company paid out $4,000 to replace his tailgate with the step and backup camera! Ford doesn't sell a complete tailgate ready to go, you have to buy all the parts then paint and assemble it. He found a used complete tailgate in CA for $1,250 (most likely stolen I'm guessing), but the crack head that he bought it from packaged it with one weak ply of bubble wrap and when it arrived, it looked like Jim Carey's Cable Guy character delivered it. It was so bad he ended up buying a new shell from Ford and transferring all the parts.

You didn't say what the damage is to your tailgate, but your best option may be to purchase a new shell and whatever miscellaneous parts you may need.